Steebles can mean many things, mostly in a pointless and random reply, can also be used as a replacement for swearing in frustration. It's most common use is if you are trying to confuse somebody who does not know what it means. Steebles is a great word to use in day-to-day life
What do you think you are doing punk?
Steebles mate, Steebles.
Aww Fu-...STEEBLES!
What you upto the night then?
Steebles
The quilted pattern you get on your nails when you go to bed too soon after painting them with nail varnish.
N.B. Even when your nail varnish appears to be dry, you are still at risk of squeeble.
Girl One: "I'm going to bed"
Girl Two: "Haven't you just painted your nails?"
Girl One: "Yeah... Like an hour ago"
Girl Two: "BEWARE THE SQUEEBLE!!"